68303311 has 2 divisors, whose sum is σ = 68303312. Its totient is φ = 68303310.

The previous prime is 68303303. The next prime is 68303359. The reversal of 68303311 is 11330386.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68303311 - 2³ = 68303303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68303611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34151655 + 34151656.

It is an arithmetic number, because the mean of its divisors is an integer number (34151656).

Almost surely, 2^68303311 is an apocalyptic number.

68303311 is a deficient number, since it is larger than the sum of its proper divisors (1).

68303311 is an equidigital number, since it uses as much as digits as its factorization.

68303311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 68303311 is about 8264.5817196032. The cubic root of 68303311 is about 408.7714782019.

Adding to 68303311 its reverse (11330386), we get a palindrome (79633697).

The spelling of 68303311 in words is "sixty-eight million, three hundred three thousand, three hundred eleven".